川中香溪群储层加砂压裂改造效果分析

EFFECT ANALYSIS FOR SAND FRACTURING RECONSTRUCT OF XIANGXIQUN FORMATION IN CHUANZHONG OILFIELD

川中香溪群储层普遍具低孔、低渗特性,大部分井只有通过压裂改造,才能获得商业开发价值。但因储层非均质性强,地质情况复杂,改造难度大,已压裂施工的井大多效果不佳,通过对该储层已施工井的数据分析,结合施工情况进行了压裂工艺技术适应性及改造效果分析,获得了一定的认识,为该地区下步增产措施提出了一些建议,以达到最终经济有效改造储层的目的。

Xiangxiqun Formation generally has the characteristic of low bore and low permeability in Chuanzhong oil field By fracturing reconstruct, most of wells have acquired the business value. Because of the characteristic of high heterogeneous, complicated geology circumstance and big recon struct diⅠculty in the formation, most of wells which have been fractured reconstruct is ineffective. By analyzing the wells data of fracture construction in the formation and combining the construction circumstance, the paper analyzes the fracturing technique adaptability and reconstructs effect and acquires some cognition. To reach the purpose for reservoir reconstruct effectively, this paper holds up some stimulation suggestions